On Sun, Aug 30, 2009 at 5:58 AM, Stroker<dmcryptmailman@xxxxxxxxxxxxxxxx> wrote: > So, I estimate it will take 80 hours to fill my drives > via: dd if=/dev/urandom of=/dev/sdb1 Yip, that's definitely too long for me to wait. > There seems to be mixed opinions regarding the use of > frandom or erandom. > > My question is, wouldn't the following command fill my > drives with randommess? Much more quickly than urandom? > > dd if=/dev/zero of=/dev/mapper/encrypted_sdb1 > > Perhaps change the key afterward, or even delete/rebuild > the dm-crypt block? That's how I do things. If the cipher you're using is vulnerable to known plaintext attacks then you have fair bigger issues than someone being able to guestimate how much encrypted data you might have. -- Roscoe _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt